CN110762426A - Anti-dazzle blackboard lamp - Google Patents

Abstract

The present invention relates to an anti-glare blackboard lamp, comprising a shell, a light source mounted on the shell, a lens mounted on the shell, a reflector mounted on the shell, and an anti-glare mounted on the shell a board; the casing includes a main body, a first shading part on one side of the main body, and a second shading part on the other side of the main body; the first shading part is located on the side of the main body away from the blackboard, Its length is greater than that of the second shading portion, the reflector is located inside the first shading portion, and the anti-glare plate is connected to the end of the first shading portion. In the anti-glare blackboard lamp provided by the present invention, through the arrangement of the first shading part, the second shading part, the lens and the reflector, all the light emitted by the light source is irradiated on the blackboard, thereby improving the light effect on the blackboard. The setting of the first shading part and the anti-glare plate prevents the light from directly hitting the human eye, reduces the glare value, and protects the human eye.

Description

An anti-glare blackboard light

technical field

The present invention relates to the technical field of lighting, in particular, to an anti-glare blackboard lamp.

Background technique

At present, classrooms generally use bracket lamps as lighting fixtures. The actual utilization efficiency of lamps is low, and it will generate a lot of glare. Some classrooms only install two fluorescent tubes on the blackboard as blackboard lights, resulting in the average illuminance of the blackboard. low, and the uniformity is extremely poor.

In order to solve the above problems, some classroom lights use double reflector blackboard lights. Two fluorescent tubes hit the blackboard through two fixed reflectors. Due to the characteristics of full-angle light emission of fluorescent tubes, a lot of light directly enters the human eye or illuminates. When it reaches the ground, it is reflected to the human eye, causing a great waste of glare and energy, and the structure of the lamp is relatively complex, which is not conducive to practical application.

There are also some blackboard lights by adding lens parts to cancel the reflector. Although the lighting effect of the blackboard is improved, the brightness of the lens is too large and the distance from the blackboard is too large, causing the glare in the direction of students and teachers to increase. The installation method of the device will sometimes block the projector, causing inconvenience in teaching.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide an anti-glare blackboard lamp, which improves the light source utilization rate of the whole lamp, reduces the glare value, and is convenient and quick to install.

In order to solve the above-mentioned technical problems, the present invention provides an anti-glare blackboard light, which includes a housing, a light source mounted on the housing, a lens mounted on the housing, a reflector mounted on the housing, and a light source mounted on the housing. an anti-glare plate on the shell;

The housing includes a body, a first light shielding portion located on one side of the body, and a second light shielding portion located on the other side of the body;

The first shading portion is located on the side of the body away from the blackboard, and its length is greater than the length of the second shading portion, and the reflector is located inside the first shading portion, and the anti-glare plate is connected to the first shading portion. The ends of the first light shielding portion are connected.

Preferably, the body is provided with light source installation grooves, and the light source installation grooves are two oppositely arranged strip grooves and are distributed in the length direction of the casing;

The light source includes a light source board and LED lamp beads mounted on the light source board, and the light source board is embedded in the light source installation groove.

Preferably, the main body is provided with a lens installation groove, the lens installation groove is located inside the main body, which is two strip-shaped grooves distributed along the length of the casing, and the light source installation groove is located in two between the lens mounting grooves.

Preferably, the lens includes a lens body, a light incident surface located inside the lens body, a reflective surface located on both sides of the light incident surface, a light exit surface located on the surface of the lens body, and two sides of the lens body the connector;

The connecting pieces extend from the lens body to two sides thereof, and are embedded in the lens mounting grooves.

Preferably, the light incident surface is arranged relative to the LED lamp bead, and is arranged obliquely;

The vertical distance between the light incident surface and the light source gradually decreases from a side close to the first light shielding portion to a side far from the first light shielding portion.

Preferably, the light emitting surface is located on the surface of the lens body, and the vertical distance between it and the light source is smaller than the vertical distance between the end of the second light shielding portion and the light source.

Preferably, the end of the first shading portion is provided with an anti-glare plate installation groove, and the anti-glare plate installation grooves are two oppositely arranged strip-shaped grooves and are distributed in the length direction of the first shading portion.

Preferably, the anti-glare plate comprises an anti-glare body and a fixing member connected with the anti-glare body;

The fixing member is embedded in the installation groove of the anti-glare plate.

Preferably, the inner side of the first shading portion is provided with a reflective plate installation groove, the reflective plate installation groove is located on the inner side of the first shading portion, which are two oppositely arranged strip-shaped grooves and are distributed in the in the length direction of the first shading portion;

The reflector is embedded inside the reflector installation groove.

Preferably, a fixing bracket is included, and the fixing bracket includes a first bracket fixed on the casing and a second bracket connected with the first bracket.

Implement the present invention, have the following beneficial effects:

1. In the anti-glare blackboard lamp provided by the present invention, through the arrangement of the first shading part, the second shading part, the lens and the reflector, all the light emitted by the light source is irradiated on the blackboard, which improves the light efficiency on the blackboard and greatly shortens the time. Installation distance from the blackboard. On the other hand, through the arrangement of the first shading portion and the anti-glare plate, the light is prevented from directly hitting the human eye, the glare value is reduced, and the human eye is protected.

2. In the anti-glare blackboard lamp provided by the present invention, the light source, lens, reflector and anti-glare plate are directly embedded in the light source, lens, reflector and anti-glare plate by arranging the light source installation groove, the lens installation groove, the reflector installation groove and the anti-glare plate installation groove on the casing. On the shell, it is easy to install and improve the installation efficiency.

3. For the anti-glare blackboard light provided by the present invention, through the setting of the fixing bracket, different installation methods can be selected according to the actual application place, and the use is flexible.

Description of drawings

1 is an exploded view of an anti-glare blackboard lamp of the present invention;

Fig. 2 is the enlarged view of A place in Fig. 1;

Fig. 3 is the structure schematic diagram of the lens of the anti-glare blackboard lamp of the present invention;

4 is a schematic cross-sectional structure diagram of the anti-glare blackboard lamp of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Only this statement, the present invention appears or will appear in the text up, down, left, right, front, rear, inner, outer and other orientation terms, only based on the accompanying drawings of the present invention, which are not specific to the present invention limited.

As shown in FIG. 1 to FIG. 2, an anti-glare blackboard light of the present invention includes a housing 1, a light source 2 mounted on the housing 1, a lens 3 mounted on the housing 1, and a light source 2 mounted on the housing 1. The reflective plate 4 on the 1 and the anti-glare plate 5 installed on the casing 1;

The housing 1 includes a main body 11 , a first shading portion 12 located on one side of the main body 11 and a second shading portion 13 located on the other side of the main body 11 ;

The first light-shielding portion 12 is located on the side of the main body 11 away from the blackboard, and its length is greater than that of the second light-shielding portion 13 , and the reflector 4 is located inside the first light-shielding portion 12 . The anti-glare plate 5 is connected to the end of the first shading portion 12 .

The housing 1 is used for fixedly installing the anti-glare blackboard light, which is used for installing the light source 2, the lens 3, the reflector 4 and the anti-glare plate 5, and the anti-glare blackboard light is assembled into an integral structure to realize its illumination. Function.

As shown in FIG. 2 , the housing 1 includes a main body 11 , a first shading portion 12 on one side of the main body 11 , and a second shading portion 13 on the other side of the main body 11 , the first shading portion 12 and the second shading part 13 are used to block the light emitted by the light source, preventing the light generated by the light source from emitting in the direction that does not need to be irradiated, causing glare. In this embodiment, the anti-glare blackboard light is used in the classroom, so it is required not to be directly irradiated. To protect the eyes of teachers and students, in order to achieve this function, the length of the first shading portion 12 is greater than the length of the second shading portion 13, and the first shading portion 12 is located on the body 11 away from One side of the blackboard, and the anti-glare plate 5 is connected to the end of the first shading portion 12 for reflecting all the light emitted by the light source 2 to the blackboard to prevent the light from directly hitting the human eye.

Correspondingly, in order to facilitate the fixed installation of the light source 2 , the lens 3 , the reflector 4 and the anti-glare plate 5 , the main body 11 is provided with a light source installation groove 14 and a lens installation groove 15 . The inner side is provided with a reflective plate installation groove 16, and its end is provided with an anti-glare plate installation groove 17, so that the light source 2, the lens 3, the reflective plate 4 and the anti-glare plate 5 can be directly installed on the casing 1 without screwing , easy to install and improve installation efficiency.

Specifically, the light source installation grooves 14 are located inside the body 11 , which are two oppositely arranged strip grooves and are distributed in the length direction of the housing 1 , and the light source 2 is embedded in the light source installation grooves 14 Inside, the installation of the light source 2 is realized.

The lens mounting grooves 15 are located inside the body 11 , which are two strip-shaped grooves distributed along the length of the housing 1 , and the light source mounting grooves 14 are located between the two lens mounting grooves 15 , so The lens 3 is embedded in the lens mounting groove 15 , so that the lens 3 covers the light source 2 .

The reflector mounting grooves 16 are located inside the first light shielding portion 12 , which are two oppositely arranged strip-shaped grooves and are distributed along the length direction of the first light shielding portion 12 , so that the reflector 4 Embedded in the reflector mounting groove 16 .

The anti-glare plate mounting slot 17 is located at the end of the first shading portion 12 , which are two oppositely arranged strip-shaped grooves and are distributed in the length direction of the first shading portion 12 to facilitate the anti-glare portion 12 . The board 5 is embedded in the anti-glare board installation groove 17 .

The light source 2 is used for lighting, and includes a light source board and LED lamp beads mounted on the light source board. The light source board is embedded in the light source installation groove 14 to realize the fixed installation of the light source.

As shown in FIG. 3 , the lens 3 is used to realize the light distribution of the light source 2 , and includes a lens body 31 , a light incident surface 32 located inside the lens body 31 , and a light incident surface 32 located on both sides of the light incident surface 32 . The reflective surface 33, the light-emitting surface 34 located on the surface of the lens body 31, and the connecting pieces 35 located on both sides of the lens body 31, the light-incident surface 32 is arranged relative to the LED lamp bead, and is arranged obliquely, that is, the The vertical distance between the light incident surface 32 and the light source 2 gradually decreases from the side close to the first shading portion 12 to the side far from the first shading portion 12 , so that the light emitted by the light source 2 , Most of them are irradiated on the blackboard, which improves the utilization rate of the light source irradiated on the blackboard, thereby improving the light efficiency.

The reflective surfaces 33 are located on both sides of the light incident surface 32, and are used to reflect the light emitted by the light source 2 to ensure that the light emitted by the light source 2 is incident through the light incident surface 32, thereby improving the light efficiency and greatly shortening the time between the light source and the blackboard. installation distance.

The light emitting surface 34 is located on the surface of the lens body 31, and the vertical distance between it and the light source 2 is smaller than the vertical distance between the end of the second shading portion 13 and the light source 2, that is, the lens 3 is submerged in the light source 2. Inside the housing 1, the protection angle of the lamp is increased to reduce the glare value.

The connecting pieces 35 extend from the lens body 31 to both sides thereof, and are embedded in the lens mounting groove 15 to realize the fixed mounting of the lens 3 .

The reflector 4 is installed on the housing 1 to reflect the light emitted by the light source 2 to the blackboard to improve the overall brightness of the blackboard. It is embedded in the reflector mounting slot 16 for convenient and quick installation.

As shown in FIG. 4 , the anti-glare plate 5 is fixed to the end of the first shading portion 12 , and includes an anti-glare body 51 and a fixing member 52 connected to the anti-glare body 51 . 51 is used to block the light emitted by the light source, prevent the light from directly hitting the human eye, and reduce the glare value.

Correspondingly, as shown in FIG. 1 , in order to realize the fixed installation of the anti-glare blackboard light, a fixing bracket 6 is also included, and the fixing bracket 6 includes a first bracket 61 fixed on the housing 1 and a first bracket A second bracket 62 connected with a bracket 61, the second bracket 62 can be fixed on the wall by screws and other structures, and can also be connected with a hanging rod to achieve its fixation, flexible use, and can be used according to the actual application. Choose a different installation method.

In the anti-glare blackboard light provided by the present invention, through the arrangement of the first shading part 12, the second shading part 13, the lens 3 and the reflector 4, all the light emitted by the light source 2 is irradiated on the blackboard, thereby improving the light effect on the blackboard. On the other hand, through the arrangement of the first shading portion 12 and the anti-glare plate 5 , the direct rays of light are prevented from hitting the human eye, the glare value is reduced, and the human eye is protected.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made, and these improvements and modifications may also be regarded as It is the protection scope of the present invention.

Claims (10)

1. An anti-dazzle blackboard lamp is characterized by comprising a shell, a light source arranged on the shell, a lens arranged on the shell, a reflector arranged on the shell and an anti-dazzle plate arranged on the shell;

the shell comprises a body, a first shading part positioned on one side of the body and a second shading part positioned on the other side of the body;

the first shading part is positioned on one side of the body far away from the blackboard, the length of the first shading part is greater than that of the second shading part, the reflector is positioned on the inner side of the first shading part, and the antiglare shield is connected with the tail end of the first shading part.

2. The anti-glare blackboard lamp according to claim 1, wherein the body is provided with light source mounting grooves which are two oppositely arranged strip-shaped grooves and distributed in the length direction of the outer housing;

the light source comprises a light source plate and LED lamp beads arranged on the light source plate, and the light source plate is embedded into the light source mounting groove.

3. The anti-glare blackboard lamp according to claim 2, wherein the body is provided with lens mounting grooves, the lens mounting grooves are located at the inner side of the body and are two strip grooves distributed along the length direction of the housing, and the light source mounting groove is located between the two lens mounting grooves.

4. The anti-glare blackboard lamp according to claim 3, wherein the lens includes a lens body, a light incident surface inside the lens body, reflective surfaces on both sides of the light incident surface, a light emitting surface on the surface of the lens body, and connectors on both sides of the lens body;

the connecting piece extends from the lens body to two sides of the lens body and is embedded into the lens mounting groove.

5. The anti-glare blackboard lamp according to claim 4, wherein the light incident surface is arranged opposite to the LED lamp beads and is inclined;

the vertical distance between the light incident surface and the light source is gradually reduced from one side close to the first shading part to one side far away from the first shading part.

6. The anti-glare blackboard lamp according to claim 4, wherein the light emitting surface is located on the surface of the lens body, and the vertical distance between the light emitting surface and the light source is smaller than the vertical distance between the end of the second light shielding part and the light source.

7. The anti-glare blackboard lamp according to claim 1, wherein the first light-shielding portion has an anti-glare plate mounting groove at its end, the anti-glare plate mounting groove being two oppositely disposed strip-shaped grooves distributed in the length direction of the first light-shielding portion.

8. The anti-glare blackboard lamp according to claim 7, wherein the anti-glare plate includes an anti-glare body and a fixing member connected to the anti-glare body;

the fixing piece is embedded into the antiglare shield mounting groove.

9. The anti-glare blackboard lamp according to claim 1, wherein a reflector installation groove is formed at the inner side of the first light-shielding portion, and the reflector installation groove is formed at the inner side of the first light-shielding portion, is formed by two oppositely arranged strip-shaped grooves, and is distributed in the length direction of the first light-shielding portion;

the reflector is embedded in the reflector mounting groove.

10. The anti-glare blackboard lamp according to claim 1, comprising a fixing bracket including a first bracket fixed to the housing and a second bracket connected to the first bracket.

Images